Developing a DSL Graphical Notation - Eclipse Modeling Project: A Domain-Specific Language Toolkit - page 223

private Datatype findInPackage(org.eclipse.oocore.Package pkg,
String typeName) {
for (PackageableElement element : pkg.getContents()) {
if (element instanceof Datatype &&
typeName.equals(element.getName())) {
return (Datatype) element;

}
if (element instanceof org.eclipse.oocore.Package) {
return findInPackage((org.eclipse.oocore.Package)
element, typeName);

}

}
return null;

}

public String getPrintString(IAdaptable element, int flags) {
String printString = getEditString(element, flags);
return printString.length() == 0 ? "<<...>>" : printString;

}

public boolean isAffectingEvent(Object event, int flags) {
if (event instanceof Notification) {
Notification emfNotification = (Notification) event;
return !emfNotification.isTouch()
&& (emfNotification.getFeature() ==
OocorePackage.eINSTANCE.getNamedElement_Name() ||
emfNotification.getFeature() ==
OocorePackage.eINSTANCE.getAttribute_DataType());

}
return false;

}

public IParserEditStatus isValidEditString(IAdaptable element,
String editString) {
return ParserEditStatus.EDITABLE_STATUS;

}

private Attribute getAttribute(IAdaptable adaptable) {
return (Attribute) adaptable.getAdapter(EObject. class );

}

public boolean areSemanticElementsAffected(EObject listener,
Object notification) {
if (notification instanceof Notification) {
Notification emfNotification = (Notification) notification;
return !emfNotification.isTouch()
&& (emfNotification.getFeature() ==
OocorePackage.eINSTANCE.getAttribute() ||
emfNotification.getFeature() ==
OocorePackage.eINSTANCE.getDatatype());

}
return false;

}